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Investments (Tables) | 9 Months Ended
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Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of Debt and Equity Securities Reconciliation | The following tables present the composition of our investment portfolio by major security type:
($ in millions) | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Net Holding Period Gains (Losses) |  | Fair Value |  | % of Total Fair Value
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |
U.S. government obligations | $ | 51,021 |  |  | $ | 731 |  |  | $ | (413) |  |  | $ | 0 |  |  | $ | 51,339 |  |  | 54.3 | %
State and local government obligations | 3,320 |  |  | 20 |  |  | (65) |  |  | 0 |  |  | 3,275 |  |  | 3.5 |
Foreign government obligations | 16 |  |  | 0 |  |  | 0 |  |  | 0 |  |  | 16 |  |  | 0 |
Corporate and other debt securities | 18,621 |  |  | 270 |  |  | (86) |  |  | 12 |  |  | 18,817 |  |  | 19.9 |
Residential mortgage-backed securities | 2,979 |  |  | 26 |  |  | (6) |  |  | 1 |  |  | 3,000 |  |  | 3.2 |
Commercial mortgage-backed securities | 5,916 |  |  | 17 |  |  | (247) |  |  | 0 |  |  | 5,686 |  |  | 6.0 |
Other asset-backed securities | 6,374 |  |  | 35 |  |  | (33) |  |  | 0 |  |  | 6,376 |  |  | 6.7 |
Total fixed maturities | 88,247 |  |  | 1,099 |  |  | (850) |  |  | 13 |  |  | 88,509 |  |  | 93.6 |
Short-term investments | 1,515 |  |  | 0 |  |  | 0 |  |  | 0 |  |  | 1,515 |  |  | 1.6 |
Total available-for-sale securities | 89,762 |  |  | 1,099 |  |  | (850) |  |  | 13 |  |  | 90,024 |  |  | 95.2 |
Equity securities: |  |  |  |  |  |  |  |  |  |  |
Nonredeemable preferred stocks | 454 |  |  | 0 |  |  | 0 |  |  | (16) |  |  | 438 |  |  | 0.5 |
Common equities | 808 |  |  | 0 |  |  | 0 |  |  | 3,239 |  |  | 4,047 |  |  | 4.3 |
Total equity securities | 1,262 |  |  | 0 |  |  | 0 |  |  | 3,223 |  |  | 4,485 |  |  | 4.8 |
Total portfolio 1 | $ | 91,024 |  |  | $ | 1,099 |  |  | $ | (850) |  |  | $ | 3,236 |  |  | $ | 94,509 |  |  | 100.0 | %
($ in millions) | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Net Holding Period Gains (Losses) |  | Fair Value |  | % of Total Fair Value
September 30, 2024 |  |  |  |  |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |
U.S. government obligations | $ | 44,231 |  |  | $ | 772 |  |  | $ | (574) |  |  | $ | 0 |  |  | $ | 44,429 |  |  | 56.0 | %
State and local government obligations | 2,681 |  |  | 10 |  |  | (90) |  |  | 0 |  |  | 2,601 |  |  | 3.3 |
Foreign government obligations | 17 |  |  | 0 |  |  | (1) |  |  | 0 |  |  | 16 |  |  | 0 |
Corporate and other debt securities | 14,970 |  |  | 222 |  |  | (156) |  |  | 0 |  |  | 15,036 |  |  | 18.9 |
Residential mortgage-backed securities | 1,404 |  |  | 24 |  |  | (6) |  |  | 2 |  |  | 1,424 |  |  | 1.8 |
Commercial mortgage-backed securities | 4,664 |  |  | 4 |  |  | (377) |  |  | 0 |  |  | 4,291 |  |  | 5.4 |
Other asset-backed securities | 6,628 |  |  | 40 |  |  | (54) |  |  | 0 |  |  | 6,614 |  |  | 8.3 |
Total fixed maturities | 74,595 |  |  | 1,072 |  |  | (1,258) |  |  | 2 |  |  | 74,411 |  |  | 93.7 |
Short-term investments | 757 |  |  | 0 |  |  | 0 |  |  | 0 |  |  | 757 |  |  | 1.0 |
Total available-for-sale securities | 75,352 |  |  | 1,072 |  |  | (1,258) |  |  | 2 |  |  | 75,168 |  |  | 94.7 |
Equity securities: |  |  |  |  |  |  |  |  |  |  |
Nonredeemable preferred stocks | 760 |  |  | 0 |  |  | 0 |  |  | (25) |  |  | 735 |  |  | 0.9 |
Common equities | 733 |  |  | 0 |  |  | 0 |  |  | 2,764 |  |  | 3,497 |  |  | 4.4 |
Total equity securities | 1,493 |  |  | 0 |  |  | 0 |  |  | 2,739 |  |  | 4,232 |  |  | 5.3 |
Total portfolio 1 | $ | 76,845 |  |  | $ | 1,072 |  |  | $ | (1,258) |  |  | $ | 2,741 |  |  | $ | 79,400 |  |  | 100.0 | %
($ in millions) | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Net Holding Period Gains (Losses) |  | Fair Value |  | % of Total Fair Value
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |
U.S. government obligations | $ | 47,103 |  |  | $ | 36 |  |  | $ | (1,151) |  |  | $ | 0 |  |  | $ | 45,988 |  |  | 57.3 | %
State and local government obligations | 2,893 |  |  | 2 |  |  | (117) |  |  | 0 |  |  | 2,778 |  |  | 3.5 |
Foreign government obligations | 16 |  |  | 0 |  |  | 0 |  |  | 0 |  |  | 16 |  |  | 0 |
Corporate and other debt securities | 14,111 |  |  | 65 |  |  | (215) |  |  | (7) |  |  | 13,954 |  |  | 17.4 |
Residential mortgage-backed securities | 1,600 |  |  | 9 |  |  | (11) |  |  | 3 |  |  | 1,601 |  |  | 2.0 |
Commercial mortgage-backed securities | 4,721 |  |  | 7 |  |  | (376) |  |  | 0 |  |  | 4,352 |  |  | 5.4 |
Other asset-backed securities | 6,682 |  |  | 26 |  |  | (65) |  |  | 0 |  |  | 6,643 |  |  | 8.3 |
Total fixed maturities | 77,126 |  |  | 145 |  |  | (1,935) |  |  | (4) |  |  | 75,332 |  |  | 93.9 |
Short-term investments | 615 |  |  | 0 |  |  | 0 |  |  | 0 |  |  | 615 |  |  | 0.7 |
Total available-for-sale securities | 77,741 |  |  | 145 |  |  | (1,935) |  |  | (4) |  |  | 75,947 |  |  | 94.6 |
Equity securities: |  |  |  |  |  |  |  |  |  |  |
Nonredeemable preferred stocks | 756 |  |  | 0 |  |  | 0 |  |  | (28) |  |  | 728 |  |  | 0.9 |
Common equities | 745 |  |  | 0 |  |  | 0 |  |  | 2,830 |  |  | 3,575 |  |  | 4.5 |
Total equity securities | 1,501 |  |  | 0 |  |  | 0 |  |  | 2,802 |  |  | 4,303 |  |  | 5.4 |
Total portfolio 1 | $ | 79,242 |  |  | $ | 145 |  |  | $ | (1,935) |  |  | $ | 2,798 |  |  | $ | 80,250 |  |  | 100.0 | %
1 At September 30, 2025 and 2024 and December 31, 2024, we had $523 million, $469 million, and $125 million, respectively, of net unsettled security transactions included in accounts payable, accrued expenses, and other liabilities on our consolidated balance sheets. The total fair value of the portfolio at September 30, 2025 and 2024 and December 31, 2024, included $4.9 billion, $4.1 billion, and $6.2 billion, respectively, of securities held in a consolidated, non-insurance subsidiary of the holding company, net of unsettled security transactions. A portion of the investments held at December 31, 2024 were sold and proceeds were used to pay our common share dividends in January 2025; see Note 9 – Dividends for additional information.
Hybrid Instruments Table | Certain securities in our fixed-maturity portfolio are accounted for as hybrid securities because they contain embedded derivatives that are not deemed to be clearly and closely related to the host investments. These securities are reported at fair value:
| September 30, |  |
(millions) | 2025 |  | 2024 |  | December 31, 2024
Fixed Maturities: |  |  |  |  |
Corporate and other debt securities | $ | 696 |  |  | $ | 637 |  |  | $ | 608 |
Residential mortgage-backed securities | 642 |  |  | 369 |  |  | 479 |
Other asset-backed securities | 0 |  |  | 3 |  |  | 1 |
Total hybrid securities | $ | 1,338 |  |  | $ | 1,009 |  |  | $ | 1,088 |
Investments Classified by Contractual Maturity Date | The composition of fixed maturities by maturity at September 30, 2025, was:
(millions) | Cost |  | Fair Value
Less than one year | $ | 8,676 |  |  | $ | 8,668 |
One to five years | 53,046 |  |  | 53,116 |
Five to ten years | 26,249 |  |  | 26,446 |
Ten years or greater | 276 |  |  | 279 |
Total | $ | 88,247 |  |  | $ | 88,509 |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value | The following tables show the composition of gross unrealized losses by major security type and by the length of time that individual securities have been in a continuous unrealized loss position:
| Total No. of Sec. | Total Fair Value | Gross Unrealized Losses | Less than 12 Months |  |  | 12 Months or Greater
($ in millions) | No. of Sec. | Fair Value | Gross Unrealized Losses |  |  | No. of Sec. | Fair Value | Gross Unrealized Losses
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |
U.S. government obligations | 71 |  | $ | 11,145 |  | $ | (413) |  | 7 |  | $ | 1,777 |  | $ | (3) |  |  |  | 64 |  | $ | 9,368 |  | $ | (410) |
State and local government obligations | 251 |  | 1,557 |  | (65) |  | 40 |  | 188 |  | (1) |  |  |  | 211 |  | 1,369 |  | (64) |
Corporate and other debt securities | 138 |  | 3,503 |  | (86) |  | 24 |  | 718 |  | (4) |  |  |  | 114 |  | 2,785 |  | (82) |
Residential mortgage-backed securities | 28 |  | 283 |  | (6) |  | 9 |  | 186 |  | (1) |  |  |  | 19 |  | 97 |  | (5) |
Commercial mortgage-backed securities | 138 |  | 2,879 |  | (247) |  | 16 |  | 375 |  | (1) |  |  |  | 122 |  | 2,504 |  | (246) |
Other asset-backed securities | 50 |  | 1,128 |  | (33) |  | 13 |  | 228 |  | (1) |  |  |  | 37 |  | 900 |  | (32) |
Total fixed maturities | 676 |  | $ | 20,495 |  | $ | (850) |  | 109 |  | $ | 3,472 |  | $ | (11) |  |  |  | 567 |  | $ | 17,023 |  | $ | (839) |
| Total No. of Sec. | Total Fair Value | Gross Unrealized Losses | Less than 12 Months |  | 12 Months or Greater
($ in millions) | No. of Sec. | Fair Value | Gross Unrealized Losses |  | No. of Sec. | Fair Value | Gross Unrealized Losses
September 30, 2024 |  |  |  |  |  |  |  |  |  |
U.S. government obligations | 86 |  | $ | 12,919 |  | $ | (574) |  | 3 |  | $ | 2,069 |  | $ | (3) |  |  | 83 |  | $ | 10,850 |  | $ | (571) |
State and local government obligations | 302 |  | 1,779 |  | (90) |  | 44 |  | 208 |  | 0 |  |  | 258 |  | 1,571 |  | (90) |
Foreign government obligations | 1 |  | 16 |  | (1) |  | 0 |  | 0 |  | 0 |  |  | 1 |  | 16 |  | (1) |
Corporate and other debt securities | 224 |  | 5,251 |  | (156) |  | 14 |  | 426 |  | (3) |  |  | 210 |  | 4,825 |  | (153) |
Residential mortgage-backed securities | 33 |  | 244 |  | (6) |  | 4 |  | 185 |  | 0 |  |  | 29 |  | 59 |  | (6) |
Commercial mortgage-backed securities | 177 |  | 3,750 |  | (377) |  | 5 |  | 170 |  | 0 |  |  | 172 |  | 3,580 |  | (377) |
Other asset-backed securities | 80 |  | 1,531 |  | (54) |  | 16 |  | 353 |  | 0 |  |  | 64 |  | 1,178 |  | (54) |
Total fixed maturities | 903 |  | $ | 25,490 |  | $ | (1,258) |  | 86 |  | $ | 3,411 |  | $ | (6) |  |  | 817 |  | $ | 22,079 |  | $ | (1,252) |
| Total No. of Sec. | Total Fair Value | Gross Unrealized Losses | Less than 12 Months |  | 12 Months or Greater
($ in millions) | No. of Sec. | Fair Value | Gross Unrealized Losses |  | No. of Sec. | Fair Value | Gross Unrealized Losses
December 31, 2024 |  |  |  |  |  |  |  |  |  |
U.S. government obligations | 113 |  | $ | 38,782 |  | $ | (1,151) |  | 39 |  | $ | 30,257 |  | $ | (418) |  |  | 74 |  | $ | 8,525 |  | $ | (733) |
State and local government obligations | 379 |  | 2,339 |  | (117) |  | 127 |  | 783 |  | (6) |  |  | 252 |  | 1,556 |  | (111) |
Corporate and other debt securities | 304 |  | 7,034 |  | (215) |  | 122 |  | 2,935 |  | (33) |  |  | 182 |  | 4,099 |  | (182) |
Residential mortgage-backed securities | 40 |  | 428 |  | (11) |  | 12 |  | 377 |  | (4) |  |  | 28 |  | 51 |  | (7) |
Commercial mortgage-backed securities | 153 |  | 3,294 |  | (376) |  | 8 |  | 264 |  | (16) |  |  | 145 |  | 3,030 |  | (360) |
Other asset-backed securities | 84 |  | 1,907 |  | (65) |  | 34 |  | 912 |  | (8) |  |  | 50 |  | 995 |  | (57) |
Total fixed maturities | 1,073 |  | $ | 53,784 |  | $ | (1,935) |  | 342 |  | $ | 35,528 |  | $ | (485) |  |  | 731 |  | $ | 18,256 |  | $ | (1,450) |
Realized Gain (Loss) on Investments | The components of net realized gains (losses) for the three and nine months ended September 30, were:
| Three Months |  | Nine Months
(millions) | 2025 |  | 2024 |  | 2025 |  | 2024
Gross realized gains on security sales |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |
U.S. government obligations | $ | 1 |  |  | $ | 43 |  |  | $ | 78 |  |  | $ | 44 |
Corporate and other debt securities | 6 |  |  | 2 |  |  | 9 |  |  | 6 |
Residential mortgage-backed securities | 0 |  |  | 0 |  |  | 1 |  |  | 1 |
Total available-for-sale securities | 7 |  |  | 45 |  |  | 88 |  |  | 51 |
Equity securities: |  |  |  |  |  |  |
Nonredeemable preferred stocks | 1 |  |  | 0 |  |  | 3 |  |  | 0 |
Common equities | 11 |  |  | 14 |  |  | 50 |  |  | 26 |
Total equity securities | 12 |  |  | 14 |  |  | 53 |  |  | 26 |
Subtotal gross realized gains on security sales | 19 |  |  | 59 |  |  | 141 |  |  | 77 |
Gross realized losses on security sales |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |
U.S. government obligations | 0 |  |  | (2) |  |  | (78) |  |  | (329) |
State and local government obligations | 0 |  |  | (1) |  |  | (2) |  |  | (1) |
Corporate and other debt securities | (4) |  |  | (5) |  |  | (7) |  |  | (43) |
Commercial mortgage-backed securities | 0 |  |  | 0 |  |  | (10) |  |  | (15) |
Total available-for-sale securities | (4) |  |  | (8) |  |  | (97) |  |  | (388) |
Equity securities: |  |  |  |  |  |  |
Nonredeemable preferred stocks | (1) |  |  | (7) |  |  | (6) |  |  | (18) |
Common equities | (2) |  |  | (12) |  |  | (6) |  |  | (12) |
Total equity securities | (3) |  |  | (19) |  |  | (12) |  |  | (30) |
Subtotal gross realized losses on security sales | (7) |  |  | (27) |  |  | (109) |  |  | (418) |
Net realized gains (losses) on security sales |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |
U.S. government obligations | 1 |  |  | 41 |  |  | 0 |  |  | (285) |
State and local government obligations | 0 |  |  | (1) |  |  | (2) |  |  | (1) |
Corporate and other debt securities | 2 |  |  | (3) |  |  | 2 |  |  | (37) |
Residential mortgage-backed securities | 0 |  |  | 0 |  |  | 1 |  |  | 1 |
Commercial mortgage-backed securities | 0 |  |  | 0 |  |  | (10) |  |  | (15) |
Total available-for-sale securities | 3 |  |  | 37 |  |  | (9) |  |  | (337) |
Equity securities: |  |  |  |  |  |  |
Nonredeemable preferred stocks | 0 |  |  | (7) |  |  | (3) |  |  | (18) |
Common equities | 9 |  |  | 2 |  |  | 44 |  |  | 14 |
Total equity securities | 9 |  |  | (5) |  |  | 41 |  |  | (4) |
Subtotal net realized gains (losses) on security sales | 12 |  |  | 32 |  |  | 32 |  |  | (341) |
Other assets |  |  |  |  |  |  |
Gain | 0 |  |  | 36 |  |  | 0 |  |  | 36 |
Net holding period gains (losses) |  |  |  |  |  |  |
Hybrid securities | 3 |  |  | 20 |  |  | 17 |  |  | 31 |
Equity securities | 280 |  |  | 200 |  |  | 421 |  |  | 591 |
Subtotal net holding period gains (losses) | 283 |  |  | 220 |  |  | 438 |  |  | 622 |
Total net realized gains (losses) on securities | $ | 295 |  |  | $ | 288 |  |  | $ | 470 |  |  | $ | 317 |
Components of Equity Realized Gains (Losses) | The following table reflects our holding period realized gains (losses) recognized on equity securities held at the respective quarter ends:
| Three Months |  | Nine Months
(millions) | 2025 | 2024 |  | 2025 | 2024
Total net gains (losses) recognized during the period on equity securities | $ | 289 |  | $ | 195 |  |  | $ | 462 |  | $ | 587 |
Less: Net gains (losses) recognized on equity securities sold during the period | 9 |  | (5) |  |  | 41 |  | (4) |
Net holding period gains (losses) recognized during the period on equity securities held at period end | $ | 280 |  | $ | 200 |  |  | $ | 421 |  | $ | 591 |
Components of Net Investment Income | The components of net investment income for the three and nine months ended September 30, were:
| Three Months |  | Nine Months
(millions) | 2025 | 2024 |  | 2025 | 2024
Available-for-sale securities: |  |  |  |  |
Fixed maturities: |  |  |  |  |
U.S. government obligations | $ | 470 |  | $ | 396 |  |  | $ | 1,314 |  | $ | 1,064 |
State and local government obligations | 24 |  | 16 |  |  | 64 |  | 42 |
Corporate and other debt securities | 214 |  | 155 |  |  | 593 |  | 417 |
Residential mortgage-backed securities | 38 |  | 14 |  |  | 95 |  | 27 |
Commercial mortgage-backed securities | 63 |  | 49 |  |  | 175 |  | 142 |
Other asset-backed securities | 78 |  | 83 |  |  | 246 |  | 243 |
Total fixed maturities | 887 |  | 713 |  |  | 2,487 |  | 1,935 |
Short-term investments | 20 |  | 9 |  |  | 66 |  | 45 |
Total available-for-sale securities | 907 |  | 722 |  |  | 2,553 |  | 1,980 |
Equity securities: |  |  |  |  |
Nonredeemable preferred stocks | 6 |  | 9 |  |  | 19 |  | 30 |
Common equities | 11 |  | 8 |  |  | 37 |  | 32 |
Total equity securities | 17 |  | 17 |  |  | 56 |  | 62 |
Investment income | 924 |  | 739 |  |  | 2,609 |  | 2,042 |
Investment expenses | (10) |  | (7) |  |  | (26) |  | (20) |
Net investment income | $ | 914 |  | $ | 732 |  |  | $ | 2,583 |  | $ | 2,022 |

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